ML20236G542
| ML20236G542 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 06/29/1998 |
| From: | ENTERGY OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20236G515 | List: |
| References | |
| NUDOCS 9807060289 | |
| Download: ML20236G542 (6) | |
Text
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l PROPOSED TECHNICAL SPECIFICATION CHANGES l
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l 9807060289 990629 yDR ADOCK 05000368 PDR L___1:_.____..___.____.___...__
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i ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) i 2.
There is no visible corrosion at battery terminals and connectors, or the connection resistance of these itema is s 150 x 10 ohm, and 3.
The average electrolyte temperature of 12 of the connected cells is above 60*F.
c.
At least once per 18 months by verifying that:
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The cells, cell plates, and battery racks show no visual indication of physical damage or abnormal deterioration, 2.
The cell-to-cell and terminal connections are clean, tight, j
and coated with anti-corrosion material,
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f 3.
The resistance of each cell-to-cell and tenninal connection is less than or equal to 150 x 10 ohm, and 4.
The battery charger will supply 2 300 amperes at 2 125 volts for 2 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
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At least once per 18 months, during shutdown, by verifying that I
the battery capacity is adequate to supply and maintain in
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OPERABLE status ell of the actual or simulated emergency loads i
for the design duty cycle when the battery is subjected to a
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battery service test.
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At least once per 60 months, during shutdown, by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test.
Once per
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60-month interval this performance discharge test may be J
performed in lieu of the battery service test.
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At least once per 18 nonths, during shutdown, performance discharge tests of battery capacity shall be given to any battery that shows signs of degradation or has reached 85% of the service f
life expected for the application.
Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its average on previous performance tests, or is below 90% of the manufacturer's rating.
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l ARKANSAS - UNIT 2 3/4 8-9 Amendment No. 64,
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3/4.8 ELECTRICAL POWER SYSTEMS BASES
. Containment electrical penetrations and penetration conductors are l
protected by either de-energizing circuits not required during reactor j
operation or by demonstrating the OPERABILITY of primary and backup l
overcurrent protection circuit breakers during periodic surveillance. The 480 volt air frame protective devices utilize electro-mechanical overcurrent elements which are mounted on the protective device and, in some instances, protective relays to trip the protective device. Actuation of the overcurrent element or relay will trip the protective device. The molded case protective devices utilize magnetic or thermal-magnetic overcurrent elements which are contained in the protective device. Actuation of each overcurrent element l
will trip the protective device.
I TS 3.8.2.3 Action *b" requires the performance of SR 4.8.2.3.a.1 within one hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter for a loss of one of the I
required full capacity chargers.
If any Category A limit in Table 4.8-2 is I
not met while a charger is inoperable, the associated battery bank shall be j
declared inoperable.and ACTION *a" entered. The Category A limits in Table j
4.8-2 specify the normal limits for electrolyte level, float voltage and specific gravity for each designated pilot cell. When TS 3.8.2.3 ACTION *b" is entered without the associated battery bank being on float (i.e. charger not connected to the bus), pilot cell float voltage is determined by measuring I
pilot cell voltage. The term," full capacity charger" as used in TS 3.8.2.3 is j
defined as a charger that is capable of supplying an output of 2 300 amperes.
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l ARKANSAS - UNIT 2 B 3/4 8-2 Amendment No. -146, i
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4 9
8 4
MARKUP OF CURRENT ANO-2 TECHNICAL SPECIFICATIONS (FORINFO ONLY) 1 i
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E____________________.____
i ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) l l
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There is no visible corrosion at battervehhee terminals gd,ee connectors, or the connection resistance of these items is s 150 x 10" ohm, and 3.
The average electrolyte temperature of 12 of the connected cells is above 60*F.
c.
At least once per 18 months by verifying that:
1.
The cells, cell plates, and battery racks show no visual indication of physical damage or abnormal deterioration, 2.
The cell-to-cell and terminal connections are clean, tight, and coated with anti-corrosion material, 3.
The resi cance of each cell-to-cell and terminal connection is less than or equal to 150 x 10" chm, and 4.
The battery charger will supply t 1 ::t 2002 300 amperes at 2 125 volts for et 1 ::t3 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
d.
At least once per 18 months, during shutdown, by verifying that the battery capacity is adequate to supply and maintain in i
OPERABLE status all of the actual or simulated emergency loads for the design duty cycle when the battery is subjected to a battery service test.
e.
At least once per 60 months, during shutdown, by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test.
Once per 60-month interval this performance discharge test may be performed in lieu of the battery service test.
f.
At least once per 18 months, during shutdown, performance discharge tests of battery capacity chall be given to any battery that shows signs of degradation or has reached 85% of the service life expected for the application.
Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its average on previous performance tests, or is below 90% of the manufacturer's rating.
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l ARKANSAS - UNIT 2 3/4 8-9 Amendment No. 64 l
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3/4.8 ELECTRICAL POWER SYSTEMS BASES containment electrical penetrations and penetration conductors are protected by either de-energizing circuits not required during reactor operation or by demonstrating-the OPERABILITY of primary and backup overcurrent protection circuit breakers during periodic surveillance. The 480 volt air frame protective devices utilize electro-mechanical overcurrent elements which are mounted on the protective device and, in some instances, protective relays to trip the protective device. Actuation of the overcurrent element or relay will trip the protective device. The molded case protective devices utilize magnetic or thermal-magnetic overcurrent elements which are contained in the protective device. Actuation of each overcurrent element will trip the protective device.
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TS 3.8.2.3 Action *b" recuires the performance of SR 4.8.2.3.a.1 within l
one hour and at least once oer 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter for a loss of one of the reauired full capacity charcers.
If any Catecorv A limit in Table 4.8-2 is i
not met while a charaer is inoperable, the associated bettery bank shall be l
declared inoperable and ACTION "a" entered. The Catecorv A limits in Table l
4.0-2 specify the normal limits for electrolyte level. float voltaae and 1
specific cravity for each desionated pilot cell. When TS 3.8.2.3 ACTION "b"
is entered without the associated battery bank beina on float (i.e. charaer not connected to the bus), pilot cell float voltaae is determined by measurina Dilot cell vo]taae. The term "tull cacAgity charcer" as used in TS 3.8.2.3 is defined as a charcer that is capable of scoolvina an outout of 2 300 amoeres.
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ARKANSAS - UNIT 2 B 3/4 8-2 Amendment No. 446, I